[Bug 28532] New: King's Bounty: The Legend - Custom mouse cursor alpha channel broken (displays black instead of transparent)

http://bugs.winehq.org/show_bug.cgi?id=28532

Bug #: 28532
           Summary: King's Bounty: The Legend - Custom mouse cursor alpha
                    channel broken (displays black instead of transparent)
           Product: Wine
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: gdi32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
                CC: [e-mail]
    Classification: Unclassified
   Regression SHA1: 9b7ea6f417a68517745203123d9df0516ebc60b1

Introduced recently in wine git with the following commit:

9b7ea6f417a68517745203123d9df0516ebc60b1 is the first bad commit
commit 9b7ea6f417a68517745203123d9df0516ebc60b1
Author: Huw Davies 
Date:   Tue Sep 27 16:13:39 2011 +0100

gdi32: Forward StretchBlt calls from the dib driver to the null driver.

:040000 040000 ce22d7943f0f7aecdda67e97b5812cb40b40cc96
c11b7ea6be9e5605ec4b3d2959af57b22ec7d54d M      dlls

Reverting this patch against wine-1.3.29-121-gfdda702 (HEAD as of 01/10/2011)
fixes the problem. Problems with Mouse cursor in this game had had a long
history. Custom game mouse pointer hadn't been rendered at all until pretty
recent Wine version (more info available in bug #24956).

P.S. CCing author of the "first bad commint".