StretchDIBits function problem.

[Cyril Margorin]

Hello,

I've discovered, that using of GetDIBits after StretchDIBits doesn't
return correct data.
More then - all pixels that it returns are black.
In attachment the test function.

Changelog:
Cyril Margorin 
add test of StretchDIBits()/GetDIBits() bunch to gdi/test/bitmap.c

--
Cyril Margorin

[Alex Villací­s Lasso]

Cyril Margorin wrote:
> Hello,
>
> I've discovered, that using of GetDIBits after StretchDIBits doesn't
> return correct data.
> More then - all pixels that it returns are black.
> In attachment the test function.
>
> Changelog:
> Cyril Margorin 
> add test of StretchDIBits()/GetDIBits() bunch to gdi/test/bitmap.c
>
> --
> Cyril Margorin

Do you know whether this test is related to this bug? - 
http://bugs.winehq.org/show_bug.cgi?id=201

Alex Villacís Lasso

[Jesse Allen]

On 1/26/06, Alex Villací­s Lasso  wrote:
> Cyril Margorin wrote:
> > Hello,
> >
> > I've discovered, that using of GetDIBits after StretchDIBits doesn't
> > return correct data.
> > More then - all pixels that it returns are black.
> > In attachment the test function.
>
> Do you know whether this test is related to this bug? -
> http://bugs.winehq.org/show_bug.cgi?id=201

This seems like the black screen with starcraft on battle.net problem.
 From what I have read before, it comes from not having a real DIB
Engine.  So I think this is the related bug:
http://bugs.winehq.org/show_bug.cgi?id=421

Jesse

[Willie Sippel]

Am Freitag, 27. Januar 2006 00:57 schrieb Alex Villací­s Lasso:
> Cyril Margorin wrote:
> > Hello,
> >
> > I've discovered, that using of GetDIBits after StretchDIBits doesn't
> > return correct data.
> > More then - all pixels that it returns are black.
> > In attachment the test function.
> >
> > Changelog:
> > Cyril Margorin 
> > add test of StretchDIBits()/GetDIBits() bunch to gdi/test/bitmap.c
> >
> > --
> > Cyril Margorin
>
> Do you know whether this test is related to this bug? -
> http://bugs.winehq.org/show_bug.cgi?id=201
>
> Alex Villacís Lasso

Also reminds me of my pet-bug:
http://bugs.winehq.org/show_bug.cgi?id=1973

So my bug might be a duplicate of 201 then, it seems...?

Ciao,
Willie

[Cyril Margorin]

Hello,

During researching of problem in StretchDIBits I've found interesting fact:
If I turn off XShm function (by undefining USE_LIBXXSHM in config.h)
test passes and application works ok (image is ok).
So I think that something wrong in using XShmPutImage / XShmGetImage.
Do you have any suggestions?

2006/1/27, Cyril Margorin :
> Hello,
>
> I've discovered, that using of GetDIBits after StretchDIBits doesn't
> return correct data.
> More then - all pixels that it returns are black.
> In attachment the test function.
>
> Changelog:
> Cyril Margorin 
> add test of StretchDIBits()/GetDIBits() bunch to gdi/test/bitmap.c
>
> --
> Cyril Margorin

--
Cyril Margorin