From: Keith Packard <keithp@keithp.com>
To: Tom Li <biergaizi2009@gmail.com>, dri-devel@lists.freedesktop.org
Subject: Re: Implementing the accelerated DRI/DRM driver for a pure 2D graphics card?
Date: Mon, 11 Aug 2014 21:15:43 -0700 [thread overview]
Message-ID: <86mwbaqr68.fsf@hiro.keithp.com> (raw)
In-Reply-To: <CAB6YEzX3e2DM8Qm_2gndonPBXgqRLm9CooZRkdAZ8QyPkA013g@mail.gmail.com>
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Tom Li <biergaizi2009@gmail.com> writes:
> So I just stuck at here. Is there a standard way to just let
> userspace/DDX to access the 2D drawing processor by the exported
> interface or DRI/DRM layer?
The Intel UXA driver uses the 2D engine for simple X acceleration
through the kernel DRI/GEM interfaces. The portion of that interface
designed to support accelerated graphics operations is entirely
GPU-specific, so you would design that based on how your card works, and
the resulting 2D driver would be chipset specific as well, using the
custom kernel interfaces you create.
--
keith.packard@intel.com
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prev parent reply other threads:[~2014-08-12 4:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-11 13:42 Implementing the accelerated DRI/DRM driver for a pure 2D graphics card? Tom Li
2014-08-12 1:50 ` Ilia Mirkin
2014-08-12 4:15 ` Keith Packard [this message]
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