[gst-devel] OpenGL context: GTK X overlay v/s SDL v/s Clutter v/s Wx

[Alexandre Quessy]

2010/4/20 sledge hammer <sledgehammer_999 at hotmail.com>:
> Are you using AIGLX? I had similar problems when I had turned on  "desktop
> effects"...
>

I don't use "Desktop effects", no. My hardware is a Nvidia that seems
fully accelerated.

a

>> Date: Tue, 20 Apr 2010 03:34:02 -0400
>> From: alexandre at quessy.net
>> To: gstreamer-devel at lists.sourceforge.net
>> Subject: Re: [gst-devel] OpenGL context: GTK X overlay v/s SDL v/s Clutter
>> v/s Wx
>>
>> Hello,
>>
>> 2010/4/19 Stefan Kost <ensonic at hora-obscura.de>:
>> > Alexandre Quessy wrote:
>> >> Hello everyone,
>> >> I am still hesitating between SDL, GTK, WxWidgets and Clutter, (not
>> >> QT) for creating an OpenGL context for the Toonloop 2.x application.
>> >>
>> >> So far, I have a prototype in SDL, but I am still unsatisfied about
>> >> how SDL 1.2 handles the fullscreen mode on Ubuntu GNU/Linux. I have
>> >> done some very satisfying prototype with GtkGLExt regaring the
>> >> fullscreen mode, but I still didn't put any Gstreamer video in it. As
>> >> for the current GTK examples, they seem to crash very often on my
>> >> computers, so I gave them up. I don't want to write an unstable
>> >> application! (the error messages says that an X resource is not
>> >> available)
>> >>
>> > Please tell use which example is unstable for you and what is the exact
>> > error. As such gstreamer and gtk is a solid team.
>> >
>> > Stefan
>>
>> As you can see in the shell log below, setting the X window ID
>> sometimes fails. It seems like sometimes the X resource is not
>> available. In some cases, the window appears to be grey, and nothing
>> happens until the application crashes. Sometimes it works, but
>> sometimes it doesn't. I am testing the gtkxoverlay example that is
>> shipped with the current Git version of gst-plugins-gl. I am running
>> an up-to-date Ubuntu Karmic 9.10 on an Intel Core 2 Duo 2.2 GHz with 2
>> Gb of RAM and the Nvidia driver.
>>
>>
>> aalex at plouf:~/src/gst-plugins-gl/tests/examples/gtk/gtkxoverlay$
>> ./gtkxoverlay
>> setting xwindow id
>> Close
>> aalex at plouf:~/src/gst-plugins-gl/tests/examples/gtk/gtkxoverlay$
>> ./gtkxoverlay
>> setting xwindow id
>> gtkxoverlay: ../../src/xcb_io.c:176: process_responses: Assertion
>> `!(req && current_request && !(((long) (req->sequence) - (long)
>> (current_request)) <= 0))' failed.
>> Aborted
>> aalex at plouf:~/src/gst-plugins-gl/tests/examples/gtk/gtkxoverlay$
>> ./gtkxoverlay
>> setting xwindow id
>> gtkxoverlay: Fatal IO error 11 (Resource temporarily unavailable) on X
>> server :0.0.
>> aalex at plouf:~/src/gst-plugins-gl/tests/examples/gtk/gtkxoverlay$
>> ./gtkxoverlay
>> setting xwindow id
>> Close
>> aalex at plouf:~/src/gst-plugins-gl/tests/examples/gtk/gtkxoverlay$
>> ./gtkxoverlay
>> setting xwindow id
>> Close
>> aalex at plouf:~/src/gst-plugins-gl/tests/examples/gtk/gtkxoverlay$
>> ./gtkxoverlay
>> setting xwindow id
>> Close
>> aalex at plouf:~/src/gst-plugins-gl/tests/examples/gtk/gtkxoverlay$
>> ./gtkxoverlay
>> setting xwindow id
>> gtkxoverlay: Fatal IO error 11 (Resource temporarily unavailable) on X
>> server :0.0.
>>
>>
>> Regards,
>> Alexandre
>>
>>
>>
>> >> Before putting 1-2 days in porting the examples to GtkGLExt, I would
>> >> like to hear some success stories or advices regarding one of those
>> >> toolkits or another. So, does anyone has good reasons to recommend one
>> >> or another? Maybe Clutter would be to be considered? I draw my shapes
>> >> and textures using some low-level vertex manipulation, and I use GLSL
>> >> shaders and such.
>> >>
>> >> Thanks,
>> >>
>> >
>> >
>> >
>> > ------------------------------------------------------------------------------
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>> >
>>
>>
>>
>> --
>> Alexandre Quessy
>> http://alexandre.quessy.net/
>>
>>
>> ------------------------------------------------------------------------------
>> Download Intel&#174; Parallel Studio Eval
>> Try the new software tools for yourself. Speed compiling, find bugs
>> proactively, and fine-tune applications for parallel performance.
>> See why Intel Parallel Studio got high marks during beta.
>> http://p.sf.net/sfu/intel-sw-dev
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-- 
Alexandre Quessy
http://alexandre.quessy.net/