[Bug 50945] New: StretchBlt may produce incorrect results

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50945

Bug ID: 50945
           Summary: StretchBlt may produce incorrect results
           Product: Wine
           Version: 6.5
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdi32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

In the attached program, test 26, 28, 36, 37, 38 doesn't produce the same
results on Wine as Windows.

Test 26: Set source DC layout flag as LAYOUT_RTL |
LAYOUT_BITMAPORIENTATIONPRESERVED
Test 28: Set source DC layout flag as LAYOUT_RTL |
LAYOUT_BITMAPORIENTATIONPRESERVED with mirrored x
Test 36: Source with mirrored x with offset
Test 37: Source with mirrored y with offset
Test 38: Source with mirrored x and y with offset

Run the test program and click left to advance test cases and click right to go
back. Compare the results on Windows and on Wine.