Wayland in N900

[Esa Törmikoski]

On 12/16/2010 11:06 AM, Sami Kyöstilä wrote:
> Hi,
>
> On Wednesday 15 December 2010 20:43:13 ext Kristian Høgsberg wrote:
>> On Wed, Dec 15, 2010 at 1:13 PM, Esa Törmikoski
>>
>> <esa.tormikoski at nomovok.com>  wrote:
>>> Looks like I'm trying to get Wayland running in Nokia N900. Is there any
>>> experiences about that already? All help and estimations about work
>>> amount is welcome.
>>
>> Hi,
>>
>> I don't know that anybody has tried that.  The big unknown is how to
>> integrate with the graphics drivers on the device - the GL stack and
>> modesetting.  And the GL stack has to provide a way for processes to
>> share 2d pixel buffers (for example an EGLImage).  I've never worked
>> with the n900 platform, so I don't know, but a good first step towards
>> Wayland would be to try to run EGL+GLES2 on the framebuffer or such.
>
> You can run the graphics stack on N900 on the framebuffer without X, but the
> problem is there's no way to share EGLImages across processes in that
> configuration. That is, the graphics driver does not support
> EGL_MESA_drm_image or any equivalent.
>
> With X, sharing EGLImages between processes is possible by backing them with
> pixmaps. So in theory you could run Wayland on N900 by using X for resource
> management -- but that would mostly defeat the purpose.
>
>> Kristian
>
> - Sami

Doomed right in the start :( Need to find some other topic for thesis 
work then if this is impossible..

-- Esa