[Bug 39882] Severe graphics glitch in Sibelius 6

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=39882

sebastianhatt at gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |major

--- Comment #6 from sebastianhatt at gmail.com ---
UPDATE:
-the latest winehq-devel 1.9.0 also has the bug (this time I carefully followed
the instructions on http://wiki.winehq.org/Bugs, installed the latest
development version of wine (without PlayOnLinux), made a clean wine prefix,
reinstalled Sibelius. Same result.
-wine 1.4, wine 1.5 and wine 1.5.10 do NOT have the bug.
-wine 1.5.11 and wine 1.5.12 do NOT have the bug, but have other problems
specific to those versions
-wine 1.5.13 introduces the bug!

For now I will stick to 1.5.10. However, Sibelius 6 runs much slower on older
wine versions than on 1.9.0 and other recent versions.

Wine 1.5.13 changelist lists among others the following changes:
  - Client-side window rendering using the DIB engine.
  - Support for transparent window areas using color keying.
(https://www.winehq.org/announce/1.5.13)
Specifically, Alexandre Julliard has made lost of changes to user32 and gdi32
(graphics/window handling) that are possible culprits.

Both could have something to do with this bug.

What do I do from here? I'm a wine newb. Do I have to use git bisect? It looks
complicated. Any help?

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