What about desktop? 2010/12/20 <[email protected]>
> Send wayland-devel mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.freedesktop.org/mailman/listinfo/wayland-devel > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of wayland-devel digest..." > > > Today's Topics: > > 1. Re: Wayland in N900 (Sami Ky?stil?) > 2. Re: Wayland in N900 (Andreas Pokorny) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 20 Dec 2010 10:26:08 +0200 > From: Sami Ky?stil? <[email protected]> > Subject: Re: Wayland in N900 > To: ext Esa T?rmikoski <[email protected]> > Cc: H?gsberg <[email protected]>, [email protected], ext, > [email protected] > Message-ID: <[email protected]> > Content-Type: Text/Plain; charset="utf-8" > > On Friday 17 December 2010 20:28:34 ext Esa T?rmikoski wrote: > > On 12/16/2010 11:06 AM, Sami Ky?stil? wrote: > > > Hi, > > > > > > On Wednesday 15 December 2010 20:43:13 ext Kristian H?gsberg wrote: > > >> On Wed, Dec 15, 2010 at 1:13 PM, Esa T?rmikoski > > >> > > >> <[email protected]> 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.. > > Yeah, all the bits that would need to be modified for this are in the > closed > source graphics driver. Of course, if you're only doing this for research > and > aren't looking for an optimal system, you could implement buffer sharing > with > an explicit userspace copy (i.e., glReadPixels). The performance will be > abysmal, though. > > > -- Esa > > - Sami > > > ------------------------------ > > Message: 2 > Date: Mon, 20 Dec 2010 10:57:52 +0100 > From: Andreas Pokorny <[email protected]> > Subject: Re: Wayland in N900 > To: [email protected] > Cc: Esa T?rmikoski <[email protected]>, > [email protected] > Message-ID: > <[email protected]> > Content-Type: text/plain; charset=UTF-8 > > Hi Esa, > > 2010/12/17 <[email protected]>: > > On 12/17, Esa T?rmikoski wrote: > > [...] > >> Doomed right in the start :( Need to find some other topic for > >> thesis work then if this is impossible.. > > > > Ask Nokia to implement EGLImage sharing across processes? > > > > I assume the driver is closed? > > The kernel part is open and provides access to buffer management. > The Imagination driver has a sort of texture streaming extension. That > allows you > to attach special shared memory buffers, that were allocated by for the > GPU. > TI added a so called buffer class as a loadable module [1], to manage > the buffer allocation. All in all maybe not enough to implement proper > sharing of > buffers, but maybe it can be abused somehow.... > > 1: > > http://processors.wiki.ti.com/index.php/OpenGLES_Texture_Streaming_-_bc-cat_User_Guide > > regards > Andreas > > > ------------------------------ > > _______________________________________________ > wayland-devel mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/wayland-devel > > > End of wayland-devel Digest, Vol 3, Issue 18 > ******************************************** >
_______________________________________________ wayland-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/wayland-devel
