How to check if OpenGL is supported?

[Campbell Barton]

On Tue, Sep 10, 2013 at 3:49 PM, Pekka Paalanen <ppaalanen at gmail.com> wrote:
> On Tue, 10 Sep 2013 14:06:55 +1000
> Campbell Barton <ideasman42 at gmail.com> wrote:
>
>> Hi, I'm interested to get Blender (OpenGL 3d graphics application)
>> running with wayland/weston.
>>
>> However I cant tell if my configuration can even run simple OpenGL
>> applications (the more recent weston for arch-linux 1.2.2 has no
>> "weston-gears").
>>
>> Whats a good way to see if loading opengl/egl applications is
>> supported?
>>
>> Some more info in case it helps.
>> ----
>>
>> A while back I managed to run weston but no opengl applications would
>> work (weston-gears for example didn't start but weston-smoke did, It
>> gave some error about not being able to setup EGL).
>> I spent some time trying to get this running but I think it simply
>> wasn't supported by proprietary-nvidia & mesa configuration.
>>
>> More recently I tried again with a newer weston but now I cant find
>> weston-gears so not sure how to test.
>>
>> There is a git repo that Wander Costa has been working on, but its
>> crashing on my system (opengl context fails to initialize).
>> https://github.com/walac/blender-wayland
>>
>> So I want to know if this is a bug in the code or just a limitation
>> with my configuration.
>>
>
> Hi,
>
> if you are still on proprietary Nvidia GeForce drivers, then Wayland GL
> applications have no chances of working at all.
>
> The basic test for openGL support (well, GLES 2.0 really, but it
> doesn't matter which flavour of GL you test) is the (weston-)simple-egl
> program from the Weston repository.
>
>
> Thanks,
> pq

Strange, weston-simple-egl works,

It prints output about EGL, linked.
http://www.pasteall.org/45482

But I'm not sure if this is using similar enough features to Blender
that the OpenGL context is comparable (Blender uses full OpenGL but
has an EGL option to support opening a window for wayland support).

-- 
- Campbell