[Mesa-dev] OpenGL ES 3.0 support

[Jordan Justen]

On Tue, Mar 26, 2013 at 1:39 AM, violin yanev <violin.yanev at gmail.com> wrote:
> Thanks for your replies guys!
>
> The output of eglinfo is:
> EGL API version: 1.4
> EGL vendor string: Mesa Project
> EGL version string: 1.4 (DRI2)
> EGL client APIs: OpenGL OpenGL_ES OpenGL_ES2
> EGL extensions string:
>     EGL_MESA_drm_image EGL_WL_bind_wayland_display EGL_KHR_image_base
>     EGL_KHR_image_pixmap EGL_KHR_image EGL_KHR_gl_renderbuffer_image
>     EGL_KHR_surfaceless_context EGL_KHR_create_context
>     EGL_NOK_swap_region EGL_NOK_texture_from_pixmap
>     EGL_NV_post_sub_buffer
>
> So apparently ES3.0 is not a supported API :(
>
> @Jordan: do you know if one can reenable ES3 on Intel graphics? Is a special
> flag expected?

As Jerome mentioned, you could build mesa from our tree (rather than
Fedora's tree).

One other option *might* be to download a build of i965_dri.so from
another distro's build of mesa, and then set the LIBGL_DRIVERS_DIR
environment variable to the directory where you downloaded the
library.

-Jordan

> On Mon, Mar 25, 2013 at 5:59 PM, Jordan Justen <jljusten at gmail.com> wrote:
>>
>> On Mon, Mar 25, 2013 at 9:41 AM, violin yanev <violin.yanev at gmail.com>
>> wrote:
>> > Hello,
>> >
>> > I was eager to try the OpenGL ES 3.0 support on the newest Mesa 9.1.
>> >
>> > I installed the latest Fedora Rawhide on my Sandy Bridge.
>>
>> I believe this Fedora commit which disabled GL3 for Intel graphics
>> will also disable GLES3 for Intel graphics:
>>
>> http://pkgs.fedoraproject.org/cgit/mesa.git/commit/?id=cbd72a1775d26a74f76be5de337ce036467e2043
>>
>> -Jordan
>>
>> > I think the
>> > graphics chip is HD 2000, lspci says I have a Xeon E3-1200 V2/3rd gen
>> > processor. glxinfo states that I have Mesa 9.1, and lsmod lists i915 as
>> > my
>> > VGA driver, so it seems that the setup is right. I wrote a simple EGL
>> > program (used the opengles2 example as basis) and tried to create am
>> > OpenGL
>> > ES3 context. I tried two methods:
>> >
>> > 1) Giving a value of 3 in the API version eglChooseConfig
>> > (EGL_CONTEXT_CLIENT_VERSION=3)
>> > This had the result that no matching configs were found.
>> > 2) Supplying the EGL_OPENGL_ES3_BIT_KHR flag in eglCreateContext (the
>> > EGL_KHR_create_context extension is present). This didn't work either
>> > (eglCreateContext returns an error).
>> >
>> > I am probably doing it the wrong way, but I didn't find any information
>> > on
>> > the internet on how to try the ES3.0 support (I checked the mesa-users
>> > mailing list, the mesa news, the intel linux drivers webpage, and even
>> > searched the commit history of mesa...). I would really appreciate some
>> > help!
>> >
>> > _______________________________________________
>> > mesa-dev mailing list
>> > mesa-dev at lists.freedesktop.org
>> > http://lists.freedesktop.org/mailman/listinfo/mesa-dev
>> >
>
>