[Scummvm-tracker] [ScummVM :: Bugs] #11430: macOS Dark Mode compatibility makes content blurry on Retina displays

[ScummVM :: Bugs]

#11430: macOS Dark Mode compatibility makes content blurry on Retina displays
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  Reporter:  dwatteau  |      Owner:  criezy
      Type:  defect    |     Status:  new
  Priority:  normal    |  Component:  Port: Mac OS X
Resolution:            |   Keywords:  retina,dark mode,blurry
      Game:            |
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Changes (by criezy):

 * status:  closed => new
 * resolution:  fixed =>

Comment:

 I am reopening this as the issue still exists when building with the SDK
 10.14 or 10.15. Explicitly opting out of dark mode support in the
 Info.plist (with NSRequiresAquaSystemAppearance = YES) does not fix the
 issue.

 LibreOffice also had a similar bug:
 https://bugs.documentfoundation.org/show_bug.cgi?id=122218
 They tracked down the issue was resulting from building with SDK 10.14 or
 above. Just changing the two bytes for the LC_VERSION_MIN_MACOSX sdk value
 in the resulting executable fixes the blurring. So this confirms that
 macOS does something different depending on the SDK value.

 They didn't track or fix the root cause of the issue, but added a
 workaround when building with Xcode 11 and the 10.14 or 10.15 SDK to set
 the SDK value to n/a in the executable:
 https://git.libreoffice.org/core/+/645fe53be0dc36535dba0ed684e21ca4cda80d70%5E%21

 The fix uses the -platform_version linker flag, which does not exist for
 older version of the linker so a check needs to be added if we want to use
 it (see for example
 https://git.libreoffice.org/core/+/b7fd89100d8653dc73955780358fe31d38b68ebf%5E%21).
 And this also means that building with Xcode 10 and the 10.14 SDK will
 result in the blurring. But this should at least fix the blurring in most
 cases (using SDK 10.13 or below, or using Xcode 11 or above). This might
 not work when using cross-compilation though (e.g. on buildbot).
-- 
Ticket URL: <https://bugs.scummvm.org/ticket/11430#comment:5>
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