[Bug 55321] New: Gdiplus curve flattening broken

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55321

Bug ID: 55321
           Summary: Gdiplus curve flattening broken
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdiplus
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 74915
  --> https://bugs.winehq.org/attachment.cgi?id=74915
Behaviour on Windows vs behaviour on Wine

It looks to me like GdipFlattenPath is broken because it essentially produces
straight lines with sharp corners. This behaviour is also seen on Windows but
only when the 'flatness' passed to the function is a huge value.

The same code on Windows produces the image on the left while on Wine it
produces the image on the right. The two seem to differ a lot because one is
essentially a curve while on the right is essentially a polygon.