Drawing on hi-dpi displays is blurry

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On my MBP 15" I see several drawing issues.

Lines and text show blurry. Rounded corners are drawn weirdly. Hard to 
describe, see the images:

Rounded corners on standard display: 
http://www.pasteall.org/pic/show.php?id=41950
The same on retina: http://www.pasteall.org/pic/show.php?id=41951

The white corner is drawn in cocoa, using NSBezierPath etc.

Axes lines and bar chart, standard display: 
http://www.pasteall.org/pic/show.php?id=41952 (both text and lines, inclusive 
bar plot border are sharp, one pixel wide)
The same on retina: http://www.pasteall.org/pic/show.php?id=41953 (e.g. axes 
lines are blurred over 4 pixels)

Comparison of text rendering between coreplot and NSTextField: 
http://www.pasteall.org/pic/show.php?id=41954

Interesting here is also that it doesn't matter what resolution I set for the 
retina display (I use the second right, between optimal and more space, but the 
same results show up with either optimal or more space settings).

Original issue reported on code.google.com by mike.lischke on 18 Dec 2012 at 9:27

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Original comment by eskr...@mac.com on 19 Dec 2012 at 1:41

• Changed state: Accepted

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This issue was closed by revision 6dba898d8147.

Original comment by eskr...@mac.com on 30 Dec 2012 at 12:31

• Changed state: Fixed