[Bug 17840] New: AlphaBlend function in msimg32.dll is not forwarded to gdi32.dll

http://bugs.winehq.org/show_bug.cgi?id=17840

Summary: AlphaBlend function in msimg32.dll is not forwarded to
                    gdi32.dll
           Product: Wine
           Version: 1.1.17
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: gdi32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

AlphaBlend function in msimg32.dll is not forwarded to GdiAlphaBlend in
gdi32.dll.

This stops programs which use AlphaBlend from displaying alpha blended drawing.

There used to be a very simple implementation of AlphaBlend in msimg32.dll
however that was removed when the GdiAlphaBlend method was implemented in what
appears to be a correct fashion.

[Bug 17840] AlphaBlend function in msimg32.dll is not forwarded to gdi32.dll

http://bugs.winehq.org/show_bug.cgi?id=17840

Vitaliy Margolen  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         OS/Version|All                         |other
           Platform|All                         |Other
         Resolution|                            |INVALID

--- Comment #1 from Vitaliy Margolen   2009-03-24 11:07:32 ---
And what tells you that it's not forwarded? Content of the msimg32.spec file:

@ stdcall AlphaBlend(long long long long long long long long long long long)
gdi32.GdiAlphaBlend
@ stdcall -private DllInitialize(long long ptr) DllMain
@ stdcall GradientFill(long ptr long ptr long long) gdi32.GdiGradientFill
@ stdcall TransparentBlt(long long long long long long long long long long
long) gdi32.GdiTransparentBlt
@ stdcall vSetDdrawflag()

Closing invalid. As you may see they _are_ forwarded.

[Bug 17840] AlphaBlend function in msimg32.dll is not forwarded to gdi32.dll

http://bugs.winehq.org/show_bug.cgi?id=17840

Dmitry Timoshkov  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED
          Component|gdi32                       |-unknown

--- Comment #2 from Dmitry Timoshkov   2009-03-25 05:03:52 ---
Closing invalid.

[Bug 17840] AlphaBlend function in msimg32.dll is not forwarded to gdi32.dll

http://bugs.winehq.org/show_bug.cgi?id=17840

--- Comment #3 from Damian Dixon   2009-03-26 16:24:34 ---
I have a program that runs under windows that calls AlphaBlend.

The program loads the msimg.dll and looks for the AlphaBlend function.

On Wine it is not finding the method and thus not displaying the imagery
correctly.

Any suggestions on how to double check if this call is or is not being
forwarded?

[Bug 17840] AlphaBlend function in msimg32.dll is not forwarded to gdi32.dll

http://bugs.winehq.org/show_bug.cgi?id=17840

--- Comment #4 from Damian Dixon   2009-03-27 01:17:43 ---
After some thought...

The real issue is AlphaBlend/GdiAlphaBlend is not work as I would expect it
too.

I have downloaded the latest source and will trace the calls.

I will also create a small windows exe that demonstrates the behaviour I am
expecting on windows.

[Bug 17840] AlphaBlend function in msimg32.dll is not forwarded to gdi32.dll

http://bugs.winehq.org/show_bug.cgi?id=17840

--- Comment #5 from Damian Dixon   2009-03-27 03:12:53 ---
The problem I have is the following:

fixme:xrender:X11DRV_AlphaBlend not a dibsection.

Which had been lost in the noise :<

I will have a look to see what is missing to see if I can knock together
something that works for the case I need.

Luckly I have the equivalent code running allready on X11, just not the
application I need...

[Bug 17840] AlphaBlend function in msimg32.dll is not forwarded to gdi32.dll

http://bugs.winehq.org/show_bug.cgi?id=17840

--- Comment #6 from Damian Dixon   2009-03-27 04:12:29 ---
It's not as simple as I hoped it would be. I may try to fix something a little
bit more simple first.