From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Thu, 15 Sep 2011 21:31:24 +0000
Subject: Re: Proposal for a low-level Linux display framework
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To: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: linaro-dev@lists.linaro.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Archit Taneja <archit@ti.com>, "Clark, Rob" <rob@ti.com>

> Okay, I see your problem. It's a bit strange you don't have acceleration. I

The hardware has 3D acceleration but not open so we can't support it.
There is no 2D acceleration - which seems to be increasingly common.

At some point I'll add hardware scrolling however by using the GTT to
implemnent scroll wrapping.

> sound like a big problem to me, but pretty inefficient, so probably copying the
> existing ones and adjusting it to your needs would be preferred (just like the
> sys* implementations exist).

I did have a look at the current ones but fixing them up given scan lines
can span page boundaries looked pretty horrible so I deferred it until I
feel inspired.

Alan