D12557: [XCF/GIMP loader] Raise maximimum allowed image size to 32767x32767 on 64 bit platforms

[David Faure]

dfaure accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R287 KImageFormats

REVISION DETAIL
  https://phabricator.kde.org/D12557

To: cfeck, alexmerry, dfaure
Cc: #frameworks, michaelh, bruns