[Bug 43736] New: PathGradientBrush results in a white shape

https://bugs.winehq.org/show_bug.cgi?id=43736

Bug ID: 43736
           Summary: PathGradientBrush results in a white shape
           Product: Wine
           Version: 2.17
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdiplus
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 59217
  --> https://bugs.winehq.org/attachment.cgi?id=59217
test project with screenshots

We develop a charting library and found some gradients are drawn as solid white
shapes in Wine for Ubuntu. Reducing the issue to the minimum we found the
problem seems to be when drawing a rectangle with a PathGradientBrush.

See the screenshots in the attachment.

- Windows.png is the result of running the .exe in a Windows 10.
- Ubuntu.png is the result of running the .exe in Ubuntu 16.04 using Wine. We
got the same result in Wine 1.6 (?), 2.0.2 and 2.17.

The attachment also contains the .exe and the project sources (made with Visual
Studio 2017).