Re: [Rhythmbox-devel] Plugin writing in C

["Bartosz Wiklak" <bwiklak gmail com>]

I finally managed to break into visualization plugin and to draw
widget inside RB :)

I'm getting a strange problem.
Widget that I'm drawing is for sure gl widget (OpenGl program are
running little frickish in compiz).
I can also draw green background setting glClearColor( 0.0f, 1.0f,
0.0f, 0.0f ); and glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT
);

But I cant draw any object. None poligon I'm creating is visible.
glGetError() == 0 all time.

Maybe someone has some ideas?
The same code in simple gtk window works good, perespective and other
things are set correct.



On Fri, Feb 15, 2008 at 11:06 AM, Bartosz Wiklak <bwiklak gmail com> wrote:
> Mirco, thank ou very much, but now I also found some examples and
>  manages to write gtk app with opengl widget.
>  Screenshot at ubuntuforums shows GTK not SDL app.
>
>  I understand gtk more and more and found many examples to read.
>
>  My problem is that only C plugin for RB I found is visualization plugin.
>  This plugin-related code is not very hard but there is lots of
>  Gstreamer related things I don't undestand (and I don't want at the
>  moment).
>
>  I think it's a little step to get rid of visualization and show
>  drawing area with gl capacity.
>  I'm just not able to do this step and I'm also a little rush-headed
>  person (I you probably found out) so after work I'm sitting in front
>  of computer and freaking-out.
>  I should finish my masters thesis :) but I'm not doing this because I
>  feel like I'm loosing my war with GTK :):).
>
>  It's just another opportunity to lean patience and humbleness so
>  please don't take my posts so seriously.
>
>  Thank you very much,
>  Bartek
>
>
>
>
>  On Fri, Feb 15, 2008 at 10:49 AM, Mirco Müller <macslow bangang de> wrote:
>  > Am Freitag, den 15.02.2008, 10:11 +0100 schrieb Bartosz Wiklak:
>  >
>  >
>  >  > I also would be happy to spend some of my free time to develop
>  >  > something for other. But for now I'm spending almost all my free time
>  >  > trying to get some info that is just not available.
>  >  > It is a little annoying for me and also for other people who would
>  >  > like to do something with me and they cant because I'm sitting in
>  >  > front of my computer all week.
>  >
>  >         This feeling I also know very well. It can happen depending on what
>  >  area of Linux desktop-development you tap into. With time you get a
>  >  better understanding how to cope with such situations.
>  >
>  >         Also don't forget that until not too long ago the only real solid
>  >  OpenGL-solution on the Linux-desktop was the combination of
>  >  nvidia-hardware and their proprietary driver. Setups like those had to
>  >  be regarded as a small section of the whole Linux-desktop user-base. Lot
>  >  and lots of people want or need to stick to pure OpenSource solutions.
>  >  In this area solid OpenGL was not a commodity. Thankfully this changed
>  >  and its getting better.
>  >
>  >         That's a reason "graphics/OpenGL-related" development information for
>  >  GNOME isn't as wide-spread as one would like. Usually you only find pure
>  >  OpenGL-documentation or small bits on GLX. Both of which are not really
>  >  useful for people who want to do clean and native gtk+/GNOME-based
>  >  development incorporating OpenGL.
>  >
>  >         But these days things are changing rapidly and a nice example of a good
>  >  documentation effort is here...
>  >
>  >         http://www.openismus.com/misc/clutter_tutorial/docs/tutorial/html/index.html
>  >
>  >  A pure gtk+-introduction you are able to find here...
>  >
>  >         http://www.gtk.org/documentation.html
>  >
>  >         If you have an nvidia-based graphics-card and use their binary driver
>  >  you might also enjoy messing around with this here...
>  >
>  >         http://macslow.thepimp.net/?p=153
>  >
>  >
>  >
>  >  Best regards...
>  >
>  >  Mirco "MacSlow" Müller
>  >
>  >
>