[Bug 28567] New: gdiplus/image.ok crashes on win64

http://bugs.winehq.org/show_bug.cgi?id=28567

Bug #: 28567
           Summary: gdiplus/image.ok crashes on win64
           Product: Wine
           Version: 1.3.29
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdiplus
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

This was found by the buildbot before commit, but I only notified Vincent 
and not wine-devel, so it's in trunk now.

Offending commit is
http://source.winehq.org/git/wine.git/commit/5f946531593a0f934cccc22eb1f67f2...

Unhandled exception: page fault on write access to 0xffffffff002302f8 in 64-bit
code (0x00002b942145592a).
Backtrace:
=>0 0x00002b942145592a setpixel_32bppPARGB+0xd0(r='h', g='h', b='h', a=-1,
row=*** invalid address 0xffffffff002302f8 ***, x=0)
[/home/bob/wineslave.dir/sandbox/slave/runtests-default-x86_64/build/dlls/gdiplus/image.c:403]
in gdiplus (0x000000000022f340)
 1 0x00002b942145a244 convert_pixels+0x40c3(width=0xa, height=0x14,
dst_stride=0xffffffd8, dst_bits=*** invalid address 0xffffffff002302f8 ***,
dst_format=0xe200b, src_stride=0x20, src_bits="hh...hh", src_format=0x21808,
src_palette=0x0(nil))
[/home/bob/wineslave.dir/sandbox/slave/runtests-default-x86_64/build/dlls/gdiplus/image.c:737]
in gdiplus (0x000000000022f470)
...