Re: Drawing UI elements behind text

[Cecilio Pardo <cpardo@imayhem.com>]

On 27/11/2024 19:58, Eli Zaretskii wrote:

>> They are drawn after switching the back paint buffer, so that the
>> redisplay result is left alone.
> 
> So you clear them up when redisplay starts and then redraw them in
> their entirety when it ends, something like that?  Doesn't that slow
> down redisplay, especially if there are many pixels and a large
> window?

Yes. We do a full frame copy on each double buffered redisplay, I expect 
we can add this with reasonable impact.

The very naive implementation I have now adds something like 5ms to each 
redisplay on a 1900px frame, and I hope to bring it down a lot from there.