Messages in this thread | | | Date | Thu, 14 Dec 2017 09:35:39 +0100 | From | Maxime Ripard <> | Subject | Re: [PATCH 0/8] drm/sun4i: Support the Display Engine frontend |
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Hi Thomas,
On Wed, Dec 13, 2017 at 05:16:22PM +0100, Thomas van Kleef wrote: > Hi, > > On 13-12-17 16:33, Maxime Ripard wrote: > > Hi, > > > > This is a first serie to enable the display engine frontend. > > > > This hardware block is found in the first generation Display Engine from > > Allwinner. Its role is to implement more advanced features that the > > associated backend, even though the backend alone can be used (and was used > > so far) for basic composition. > > > > Among those features, we will find hardware scaling, that is supported in > > this serie, colorspace conversions, or more exotic formats support such as > > the one output by the VPU. > > So, if I have read the code correctly. The frontend will be used whenever the > input size differs from the output size.
Yes :)
My current plan is to extend it as needed when we'll need to deal with a format not supported by the backend (for the VPU), or anything the backend cannot support.
Maxime
-- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com [unhandled content-type:application/pgp-signature] | |