[Bug 4430] Maya PLE install crashes in GdiAlphaBlend (possible SendMessage / UpdateWindow snafu?)

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=4430





------- Additional Comments From dank at kegel.com  2006-28-01 14:30 -------
And, for completeness, here are a few lines from WINEDEBUG=+bitblt
from right before the crash:

trace:bitblt:PatBlt 0x740 0,0 337x126 f00021
trace:bitblt:BITBLT_InternalStretchBlt     rectdst=0,0-337,126 orgdst=33,41
trace:bitblt:BITBLT_InternalStretchBlt     vissrc=none visdst=0,0-337,126
trace:bitblt:GdiAlphaBlend 0x1ce0 0,0 32x32 -> 0x740 1,1 32x32 op=00 flags=00
srcconstalpha=ff alphafmt=01

Running under winedbg yields a bit more info; the stack trace has memcpy on it:

First chance exception: page fault on read access to 0x7c8d1000 in 32-bit code
(0x002464dc).
Register dump:
 CS:0073 SS:007b DS:007b ES:007b FS:003b GS:0033
 EIP:002464dc ESP:7b93cd74 EBP:7b93cf30 EFLAGS:00010212(   - 00      - RIA1)
 EAX:00000001 EBX:7cbd446c ECX:00000020 EDX:00000020
 ESI:7c8d1000 EDI:7bcbc558
Stack dump:
0x00000000:  00000000 00000000 00000000 00000000
0x00000010:  00000000 00000000 00000000 00000000
0x00000020:  00000000 00000000 00000000 00000000
0x00000030:  00000000 00000000 00000000 00000000
0x00000040:  00000000 00000000 00000000 00000000
0x00000050:  00000000 00000000 00000000 00000000
Backtrace:
=>1 0x002464dc memcpy+0x1c in libc.so.6 (0x002464dc)
  2 0x7b79ac73 GdiAlphaBlend+0x9b(hdcDst=0x740, xDst=0x1, yDst=0x1,
widthDst=0x20, heightDst=0x20, hdcSrc=0x1cfc, xSrc=0x0, ySrc=0x0, widthSrc=0x20,
heightSrc=0x20, blendFunction=0x1ff0000) [/home/dank/wine/dlls/gdi/bitblt.c:457]
in gdi32 (0x7b79ac73)
...
0x002464dc memcpy+0x1c in libc.so.6: repe movsl (%esi),%es:(%edi)

According to winedbg, this is the first call to GdiAlphaBlend.
Oddly, if I set a breakpoint on GdiAlphaBlend, and then
hit "n" to step, the program exits.  Hrm.  

That's all the looking I can do for a while, I think.

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