Re: [GtkGLExt] Fwd: Re: GtkGlExt & GTK3

[Carlos Pereira <jose carlos pereira ist utl pt>]

Hi Javier,
thank you very much for your work!

I think this is really good news, it is the first time I see 
confirmation that GTK 3 and OpenGL work well. These two examples don't 
test everything, but I would be really surprised if something was not 
working properly, after this.

The beauty of this approach is that the layer between GTK and OpenGL is 
so small, that the maintenance work needed when GTK (or OpenGL) changes 
is minimal and the chances of breaking something are also minimal.

Actually the function gtk_opengl_create () is now even simpler than 
before (the colormap references are gone):
https://gitorious.org/gtkopengl/gtkopengl/commit/5c0e45b4a493ec17daaa92cb7d4072ea0e8502fc

Perhaps it is time to start porting my package to GTK 3...

Regards,
Carlos

On 02/26/2014 02:43 AM, Javier Jardón wrote:
> Hi Carlos,
>
> On 23 February 2014 23:49, Carlos Pereira
> <jose carlos pereira ist utl pt>  wrote:
>    
> > Sorry for the delay, here is the code I prepared (it contains all
> > the functions needed to run OpenGL on a GTK drawing area):
> >
> > http://www.gamgi.org/gtk_opengl.tar.gz
> > or:
> > http://www.gamgi.ist.utl.pt/gtk_opengl.tar.gz
> >
> > The code is in a single file, gtk_opengl.c, very easy to read, I think.
> > It has 189 lines of C code only, a good part of it are comments and space
> > lines...
> >
> > I included a directory with two classic examples, distributed by all
> > GtkGLArea and GtkGLExt releases, to show how this code works.
> >
> > I included other directory with the same two examples, this time
> > using GtKGLExt, to make it simpler to compare the two approaches.
> >
> > The code comes with README files and comments, with the most relevant
> > information. A variation of this code has been used since 2010 in a
> > relatively
> > large package without known problems.
> >
> > I want to make it clear that I wrote this code for GTK 2 and the X Window
> > System.
> > There are a few gdk_x11_* functions, included through<gdk/gdkx.h>, that
> > might be handled differently on GTK 3. These changes, if needed, *should* be
> > trivial.
> >      
> I was curious about this and I ported your "library" and examples to
> GTK+3 (basically all the content of the home_made folder)
> On my testing everything compiles and works perfectly fine :)
> Ive uploaded the code to this repository [1] in case you (or anyone)
> are interested
>
> Regards and thanks for your work!
>
> [1] https://gitorious.org/gtkopengl/gtkopengl/source/master:
>