[PATCH] DRM planes
jbarnes at virtuousgeek.org
Thu Nov 3 15:24:49 PDT 2011
On Thu, 3 Nov 2011 22:20:00 +0000
Alan Cox <alan at lxorguk.ukuu.org.uk> wrote:
> > We're talking about gpus, there's no way an application will talk to them
> > than through some nice cozy abstraction layer like OpenGl, X, ... Even
> > Wayland has gbm to do the low-level kms scanout allocation.
> You are talking about scanouts. Nothing more. Nothing in KMS/DRM even
> requires GPU accelerations.
> > > However - user space is already working in fourcc, v4l has working fourcc
> > > and dumping the mess on the user isn't going to be a win.
> > The mess will be dumped onto userspace anyway, but it won't be dumped onto
> > the user - that one should use Xv or some fancy EGLImage extension.
> Or quite likely in many embedded circumstances be working directly with
> buffers and FourCC. Just like happens now with V4L. FourCC has its ugly
> corners but its trivial to turn it into a table if you have a driver that
> requires this. Old hat, old problem. Solved in AmigaOS in the 1980s.
Ok now does anyone want to provide reviewed-bys on this stuff so Dave
will feel warm & fuzzy before applying the patches?
Daniel, have you been beaten down enough to acquiesce to that? Alan,
does this look usable for your stuff?
Jesse Barnes, Intel Open Source Technology Center
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