>>105800998
> a cursor plane
Interesting.
That seems yo be a massive waste of memory if you had high expectations of what the cursor needed to look like. I.e.
- 24-bit color depth
- alpha gradient and transparency
- hdr
That’s at least 32-bits/pixel. For a whole screen sized plane? I doubt that.

Of course, I think the problem is they’re bitbltting the cursor and other elements at all! Should need to do it. But that’s composition.
It would work better with shared gpu/cpu multi-port memory like the playstation 4 had, but I think the idea might have something to do with Nvidia paying so everyone buys their new computer-like APUs.