[Cogl] Fwd: failure using cogl-gles2

[mahesh gawali]

I am using  Cogl-1.12, Clutter-1.12


- Mahesh


On Thu, Jan 31, 2013 at 8:14 PM, Robert Bragg <robert at sixbynine.org> wrote:

> oops sorry, I forgot to reply-all to the list too...
>
>
> ---------- Forwarded message ----------
> From: Robert Bragg <robert at sixbynine.org>
> Date: Thu, Jan 31, 2013 at 2:42 PM
> Subject: Re: [Cogl] failure using cogl-gles2
> To: mahesh gawali <maheshgawali at gmail.com>
>
>
> I wonder if you are running with the latest Cogl (using the cogl-1.14
> branch) and Clutter (master)? I think if you are at least using the
> latest 1.12 release of Cogl you should have the latest fixes for cogl
> gles2 context issues we've seen.
>
> If you haven't already built Cogl with --enable-debug that might help
> to since it will enable Cogl to catch GL errors at source.
>
> kind regards,
> - Robert
>
> On Thu, Jan 31, 2013 at 1:59 PM, mahesh gawali <maheshgawali at gmail.com>
> wrote:
> > Thanks for the quick response Robert, Neil and Tomeu.
> >
> > I also have an ARM target to which i have ported webkit-clutter. I ran
> the
> > conformity test inside cogl setup for verifying GLES2
> (test-gles2-context).
> > It ran fine. But am facing the same issue with webgl in webkit-clutter on
> > both setups.
> >
> > I have an Nvidia GPU on my x86 setup and a mali-gpu on the ARM setup.
> >
> > Please let me know if there is anything else i can try.
> >
> > @Tomeu: In Webkit-clutter, do we need to change the gaurds here to
> > accomodate backend=clutter
> >
> > Source/WebCore/platform/graphics/clutter/GraphicsContext3DPrivate.h
> >
> > #if USE(OPENGL_ES_2) // should we be checking backend==clutter also here
> ?
> >     CoglGLES2Context *m_gl_context;
> > #else
> >     CoglContext *m_gl_context;
> > #endif
> >
> >
> > for webkit-clutter my config options are:
> > ./configure --prefix=/home/user/install-webkit
> > --enable-accelerated-compositing=yes --enable-webgl=yes
> --with-port=clutter
> > --with-acceleration-backend=clutter --enable-animation-api=yes
> > --with-target=x11
> >
> >
> > --
> > Mahesh
> >
> >
> >
> >
> >
> > - Mahesh
> >
> >
> > On Wed, Jan 30, 2013 at 10:01 PM, Tomeu Vizoso <tomeu at tomeuvizoso.net>
> > wrote:
> >>
> >> On 30 January 2013 16:03, Neil Roberts <neil at linux.intel.com> wrote:
> >>>
> >>> Robert Bragg <robert at sixbynine.org> writes:
> >>>
> >>> > In the case of webkit-clutter since the CoglGLES2Context api is
> >>> > currently documented to only work with the gles2 driver then
> >>> > webkit-clutter should probably be trying to explicitly create a
> >>> > context with a native gles2 driver.
> >>>
> >>> There is also a constraint for creating GLES2 contexts which
> >>> webkit-clutter could use called
> >>> COGL_RENDERER_CONSTRAINT_SUPPORTS_COGL_GLES2. It would be nicer if it
> >>> used that so it would automatically switch to using the GL driver if
> >>> Cogl was eventually able to support GLES2 contexts there.
> >>
> >>
> >> Filed it here, patches welcome :)
> >>
> >> https://webkit-clutter.collabora.co.uk/ticket/76
> >>
> >> Regards,
> >>
> >> Tomeu
> >
> >
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>
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