Hi,

I got some promising feedback to my previous experimentals (thanks to Chris, 
Adam, and all others who tested behind the scenes!).
So here it goes, attached the patch.

OS X: Optimize drawing of grid, polygons, and line arrays in the legacy 
canvases using wxGraphicsContext.

Note 1:
The patch enables USE_WX_GRAPHICS_CONTEXT for OS X per default - this shouldn’t 
be a major change because it seems to get used on OS X behind the scenes 
anyway. 
As a side-effect, this might improve behavior with anti-aliasing because then 
KiCad per default shifts drawing by (0.5, 0.5) into the middle of the virtual 
pixels, so things maybe will be less blurry.
It will still build without using USE_WX_GRAPHICS_CONTEXT, but then the 
optimizations obviously won’t be used.

Note 2:
The optimizations currently only are effective for USE_WX_GRAPHICS_CONTEXT 
*and* OS X.
They might be also good for other platforms using USE_WX_GRAPHICS_CONTEXT 
because it aggregates some drawing primitives using paths wxGraphicsContext 
provides.
Since I don’t know where else USE_WX_GRAPHICS_CONTEXT is used, I did not enable 
it in general.

Note 3:
It adds some #ifdefs for not compiling the wxGraphicsContext stuff at all when 
USE_WX_GRAPHICS_CONTEXT isn’t in use.
If you hate #ifdefs, this also could be dropped but then it will always check 
if wxGraphicsContext can be applied...


Regards,
Bernhard

Attachment: osx-draw-opt.patch
Description: Binary data

_______________________________________________
Mailing list: https://launchpad.net/~kicad-developers
Post to     : [email protected]
Unsubscribe : https://launchpad.net/~kicad-developers
More help   : https://help.launchpad.net/ListHelp

Reply via email to