Tom1 wrote on Sat, 18 April 2020 14:05

Hi Mirek,

I noticed an update in trunk for GTK3 SysDrawImageOp(), but for some reason a fixed value works twice as fast in repeated use.

	//Size sz = Ctrl::GetPrimaryScreenArea().GetSize();
	Size sz(3840,2160); // Twice as fast compared to the above... why?
	cache.Shrink(4 * sz.cx * sz.cy, 1000); // Cache must be after Paint because of PaintOnly!

I just cannot figure out why. I tried even using static Size, with no improvement.

Best regards,

Tom

Try DDUMP(Ctrl::GetPrimaryScreenArea()); there. Perhaps it is wrong?

In related news, I have reimplemented RectTracker to actually avoid using ViewDraw (what can I do if it does not work on MacOS, right?).

It now works by "snapshoting" master widget into Image and then using normal Paint. In the end I am quite happy about it, as this completely removes the need for RectTracker support in all hosts - it was really ugly in gtk3 and macos...

Mirek

Ctrl::GetPrimaryScreenArea() = [0, 0] - [3840, 2080] : (3840, 2080)