Buffer Damage

[Simon Ser]

On Monday, January 4th, 2021 at 12:23 PM, Vlad Zahorodnii <vlad.zahorodnii at kde.org> wrote:

> The buffer damage and the surface damage are not the same and there is
> no strong connection between the two, for example, if the buffer
> damage is empty, it doesn't imply that the surface damage is also empty
> (and vice versa). It can be the case if the client has pre-rendered N
> buffers and simply cycles between them.
>
> What is your opinion about buffer damage? Do you think it makes sense or
> are there alternatives that don't require changing the core wayland
> protocols?

Do you have real-world examples where the buffer damage would improve
performance?

Note, many clients now use some kind of hardware acceleration, which
wouldn't benefit from this optimization.