[Mesa-dev] [PATCH 2/2] egl: add EGL_platform_device support

[Marek Olšák]

Adam, did you notice my original suggestion "If there is at least 1 drm
device, swrast won't be in the list."? which means swrast would be in the
list for your "dumb" GPUs.

Marek

On Tue, Apr 23, 2019 at 7:52 PM Adam Jackson <ajax at redhat.com> wrote:

> On Tue, 2019-04-23 at 19:21 -0400, Marek Olšák wrote:
>
> > Then I think a separate EGL extension that exposes swrast would be
> > better. The thing with the device extensions is that swrast is not a
> > device.
>
> Enh. I've got dumb GPUs I need to support, they need to run OpenGL, and
> if they were running swrast-on-otherwise-dumb-gem, I can make posting
> the front buffer to the compositor be (at least sometimes) zero-copy,
> instead of the XPutImage thing that drisw currently has to do. So I
> don't think it's necessarily the case that swrast doesn't have
> "hardware" support behind it.
>
> More generally, if the term in the extension spec was "renderer" not
> "device" I don't think we'd be having this discussion. And I think it's
> worth having renderer selection be orthogonal in an API sense.
>
> - ajax
>
>
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